Merge branch 'master' of git://github.com/clawpack/pyclaw

* 'master' of git://github.com/clawpack/pyclaw:
  correct the verifier returned tuple
  Fix gauges coordinates
  modification for testing gauges
Merge branch 'master' of git://github.com/clawpack/pyclaw

* 'master' of git://github.com/clawpack/pyclaw:
  Added comments where obscure error message is generated suggesting we fix this
  Don't adjust time step based on an absolute size.
  Fixed ascii.py and binary.py reading of aux arrays
  Added code to read binary aux file to io.binary
  added pyclaw/io/binary.py to read binary amrclaw output
More careful exception handling in ascii.py.
Clean up io/petsc.py.
Merge pull request #268 from ketch/clean_up_io

Clean up I/O